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TRUSTED BY GREENWICH, CT HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon26
    Verified generator installs reviews

Find Generator install pros in Greenwich

Avatar for The Builders & Cleaners

The Builders & Cleaners

4.89(
94
)
Approved Pro

The Builders & Cleaners

4.89(
94
)
Approved Pro
Customers say: True professional
8 years of experience
Free onsite estimate

Based in West Haven, Connecticut, our team has provided an excellent, affordable service to more than thousands of houses over the years. We are committed to supporting our customers throughout the evaluation process, during the service itself and are available to answer any queries once the work is complete. We are a licensed and fully insured company aiming to respond to all requests involving our services within 24 hours or less. Our professional and knowledgeable staff have a combined experience of over 12 years within the construction, air duct cleaning, and landscaping industries, ensuring guaranteed satisfaction with every job. We pride ourselves in providing a safe, hazard-free environment and maintaining respectful, cordial communications with all of our clients. All technicians can be relied on to keep project sites clean both during and after the work is complete.

"Reached out to get our gutters cleaned. David was very responsive and offered a reasonable rate. Did the job quickly and thoroughly, sent lots of pictures and video of the finished work. Very satisfied, would definitely recommend"

Isaac D on October 2025

Based in West Haven, Connecticut, our team has provided an excellent, affordable service to more than thousands of houses over the years. We are committed to supporting our customers throughout the evaluation process, during the service itself and are available to answer any queries once the work is complete. We are a licensed and fully insured company aiming to respond to all requests involving our services within 24 hours or less. Our professional and knowledgeable staff have a combined experience of over 12 years within the construction, air duct cleaning, and landscaping industries, ensuring guaranteed satisfaction with every job. We pride ourselves in providing a safe, hazard-free environment and maintaining respectful, cordial communications with all of our clients. All technicians can be relied on to keep project sites clean both during and after the work is complete.

"Reached out to get our gutters cleaned. David was very responsive and offered a reasonable rate. Did the job quickly and thoroughly, sent lots of pictures and video of the finished work. Very satisfied, would definitely recommend"

Isaac D on October 2025


Avatar for R.Piro Electric, LLC

R.Piro Electric, LLC

4.89(
57
)
Approved Pro

R.Piro Electric, LLC

4.89(
57
)
Approved Pro
Super Service Award
Customers say: Quick response
11 years of experience
Free onsite estimate

R.Piro Electric, LLC, services Connecticut out of Trumbull. We pride ourselves on the dedication we have to our customers and the quality of work that we provide. Give us a call today! We look forward to working with you! We are a family run business and pride ourselves on our ability to communicate with our customers and develop a relationship that will last for a lifetime. Customer satisfaction is our priority, and we are willing to do whatever it takes to have you completely satisfied.

"They are professional, reasonably priced, and do very nice work. Highly recommend."

Casey F on April 2025

R.Piro Electric, LLC, services Connecticut out of Trumbull. We pride ourselves on the dedication we have to our customers and the quality of work that we provide. Give us a call today! We look forward to working with you! We are a family run business and pride ourselves on our ability to communicate with our customers and develop a relationship that will last for a lifetime. Customer satisfaction is our priority, and we are willing to do whatever it takes to have you completely satisfied.

"They are professional, reasonably priced, and do very nice work. Highly recommend."

Casey F on April 2025


Avatar for Extel Communications, Inc.

Extel Communications, Inc.

4.96(
37
)
Approved Pro

Extel Communications, Inc.

4.96(
37
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
39 years of experience

We're a local family-owned and operated business started in 1987 with hundreds of satisfied customers throughout Connecticut and New York. We install and maintain hosted-cloud and on-premise telephone systems and provide service for your existing telephone system. Additionally, we offer telco & cable company network services, troubleshoot WiFi issues including installing wireless access points for WiFi connectivity, install data, fiber and voice cabling, security cameras and computer networks. Contact us today for a no charge, no obligation survey for all of your telecom and data needs!

"Immediate response. Expert, knowledgeable work. Excellent customer service. Very reasonable price. Would hire them again without question."

Brian M on December 2023

We're a local family-owned and operated business started in 1987 with hundreds of satisfied customers throughout Connecticut and New York. We install and maintain hosted-cloud and on-premise telephone systems and provide service for your existing telephone system. Additionally, we offer telco & cable company network services, troubleshoot WiFi issues including installing wireless access points for WiFi connectivity, install data, fiber and voice cabling, security cameras and computer networks. Contact us today for a no charge, no obligation survey for all of your telecom and data needs!

"Immediate response. Expert, knowledgeable work. Excellent customer service. Very reasonable price. Would hire them again without question."

Brian M on December 2023


Rocco Kohut Electrical Installations and Repairs, LLC

4.87(
211
)
Approved Pro

Rocco Kohut Electrical Installations and Repairs, LLC

4.87(
211
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
24 years of experience

Rocco Kohut Electrical Installations and Repairs, LLC, serves Fairfield County. I specialize in troubleshooting electrical problems and repairs. Other services include installations of fixtures,outlets and fans to general electrical wiring, we are here for your electrical needs.

"I needed a job done in short order and Rocco was extremely responsive and efficient. Very much so a no bull**** experience and I couldn’t be happier. HIGHLY recommend."

Thomas P on May 2025

Rocco Kohut Electrical Installations and Repairs, LLC, serves Fairfield County. I specialize in troubleshooting electrical problems and repairs. Other services include installations of fixtures,outlets and fans to general electrical wiring, we are here for your electrical needs.

"I needed a job done in short order and Rocco was extremely responsive and efficient. Very much so a no bull**** experience and I couldn’t be happier. HIGHLY recommend."

Thomas P on May 2025


Avatar for W B Lightning Rods

W B Lightning Rods

4.93(
297
)
Approved Pro

W B Lightning Rods

4.93(
297
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
25 years of experience

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024


Avatar for J&I Home Improvement, LLC

J&I Home Improvement, LLC

4.97(
36
)
Approved Pro

J&I Home Improvement, LLC

4.97(
36
)
Approved Pro
Super Service Award
Customers say: True professional
5 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treads your home as if it were our own. We offer remodeling services. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"Juan Carlos & his team were absolute pro’s. Such a pleasure working with him throughout the process. From the moment he reached out, I knew he was the guy. Detailed, on-time, no nonsense, timely communication and the best price around. AND most important — OUTSTANDING work. The best overall experience I’ve had with a contractor hands down. I cannot recommend J & I Home Improvement with more conviction — and fast enough."

Robbie B on August 2025

We are a locally owned and operated company that values honesty and integrity and treads your home as if it were our own. We offer remodeling services. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"Juan Carlos & his team were absolute pro’s. Such a pleasure working with him throughout the process. From the moment he reached out, I knew he was the guy. Detailed, on-time, no nonsense, timely communication and the best price around. AND most important — OUTSTANDING work. The best overall experience I’ve had with a contractor hands down. I cannot recommend J & I Home Improvement with more conviction — and fast enough."

Robbie B on August 2025


Buckley Electric & Automation, LLC

4.86(
90
)
Approved Pro

Buckley Electric & Automation, LLC

4.86(
90
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
38 years of experience

Buckley Electric and Automation is happy to handle any and all your electrical service needs. We specialize in: Landscape lighting Lighting control systems & dimming Generators Wifi network wiring Cable TV & fiber wiring Ring & wireless equipment installations LED lighting retrofits Telephone systems "If it's wired we do it" Established in Fairfield County since 1988.

"Ross was excellent to work with. Project was completed on time. Will definitely recommend him for any projects."

Vikram S on January 2023

Buckley Electric and Automation is happy to handle any and all your electrical service needs. We specialize in: Landscape lighting Lighting control systems & dimming Generators Wifi network wiring Cable TV & fiber wiring Ring & wireless equipment installations LED lighting retrofits Telephone systems "If it's wired we do it" Established in Fairfield County since 1988.

"Ross was excellent to work with. Project was completed on time. Will definitely recommend him for any projects."

Vikram S on January 2023


Avatar for Universe Home Services

Universe Home Services

4.74(
401
)
Approved Pro

Universe Home Services

4.74(
401
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
72 years of experience

Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!

"The plumber came out explained the whole process & provided me with a reasonable price that was in my budget & the next day they installed the new system. Mike was fantastic he walked me thru the whole process very neat & professional. The installation was fast & complete great job well worth the money"

Anthony G on November 2025

Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!

"The plumber came out explained the whole process & provided me with a reasonable price that was in my budget & the next day they installed the new system. Mike was fantastic he walked me thru the whole process very neat & professional. The installation was fast & complete great job well worth the money"

Anthony G on November 2025


Avatar for Frank's Generator Sales Service & Repair

Frank's Generator Sales Service & Repair

5.00(
18
)
Approved Pro

Frank's Generator Sales Service & Repair

5.00(
18
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Generator Sales Service & Repair 25 years experience I am a generator specialist tier4 diesel gas propaine. Free estimates emergency service 24-7 I work regularly for the NYS DEP , NYC Power Authority , Hillview Resevour who provides 2 billion gallons of water to most of NYC. I partner with the best electrician in the industry fully lisenced to give you outstanding service.Generac Dealer. I guarantee I will beat any estimate you get by 10% or more. Contact me for a estimate to beat and we will work together to give you outstanding service.

"Title: Outstanding Service – Fast, Professional, and Thorough! I can't say enough great things about Frank Rinaldi! He did an absolutely amazing job diagnosing and repairing my generator. I was completely blown away by how quickly he responded—honestly, I never expected such fast service. Frank showed up promptly, quickly identified the issue, and had everything fixed in no time. Not only was he professional and efficient, but he also went above and beyond by cleaning and servicing the entire generator. The level of care and attention to detail he put into the job was truly impressive. It’s rare to find someone this reliable and dedicated these days. I highly recommend Frank to anyone in need of generator service or repair—he’s a true pro!"

Thomas W on July 2025

Generator Sales Service & Repair 25 years experience I am a generator specialist tier4 diesel gas propaine. Free estimates emergency service 24-7 I work regularly for the NYS DEP , NYC Power Authority , Hillview Resevour who provides 2 billion gallons of water to most of NYC. I partner with the best electrician in the industry fully lisenced to give you outstanding service.Generac Dealer. I guarantee I will beat any estimate you get by 10% or more. Contact me for a estimate to beat and we will work together to give you outstanding service.

"Title: Outstanding Service – Fast, Professional, and Thorough! I can't say enough great things about Frank Rinaldi! He did an absolutely amazing job diagnosing and repairing my generator. I was completely blown away by how quickly he responded—honestly, I never expected such fast service. Frank showed up promptly, quickly identified the issue, and had everything fixed in no time. Not only was he professional and efficient, but he also went above and beyond by cleaning and servicing the entire generator. The level of care and attention to detail he put into the job was truly impressive. It’s rare to find someone this reliable and dedicated these days. I highly recommend Frank to anyone in need of generator service or repair—he’s a true pro!"

Thomas W on July 2025


Avatar for Power Forward LLC

Power Forward LLC

4.91(
23
)
Approved Pro

Power Forward LLC

4.91(
23
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
Free onsite estimate

Serving Shoreline Connecticut for 15 years, Power Forward offers a level of service to match the quality of the area. We understand that we are not working on a house, we are working in your home. By staying up to date with the rapidly advancing technology in the trade, Power Forward provides the latest in design and energy efficiency. With our experience in southern New England which boasts some of the oldest homes in the country, Power Forward has the unique ability to efficiently troubleshoot antiquated electrical systems or can seamlessly integrate the latest technology with your vintage home.

"Great. The tech was fantastic"

John F on April 2024

Serving Shoreline Connecticut for 15 years, Power Forward offers a level of service to match the quality of the area. We understand that we are not working on a house, we are working in your home. By staying up to date with the rapidly advancing technology in the trade, Power Forward provides the latest in design and energy efficiency. With our experience in southern New England which boasts some of the oldest homes in the country, Power Forward has the unique ability to efficiently troubleshoot antiquated electrical systems or can seamlessly integrate the latest technology with your vintage home.

"Great. The tech was fantastic"

John F on April 2024

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Generator Install questions, answered by experts

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

The Greenwich, CT homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

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